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United States Patent | 5,106,977 |
Godfrey, Jr. ,   et al. | April 21, 1992 |
Novel intermediates for preparing 2-oxo-1-[[(substituted sulfonyl)-amino]carbonyl]azetidines are disclosed. These intermediates have the formula ##STR1## wherein Prot is as defined herein.
Inventors: | Godfrey, Jr.; Jollie D. (Trenton, NJ); Mueller; Richard H. (Ringoes, NJ) |
Assignee: | E. R. Squibb & Sons, Inc. (Princeton, NJ) |
Appl. No.: | 589289 |
Filed: | September 27, 1990 |
Current U.S. Class: | 546/14; 540/363; 546/296 |
Intern'l Class: | C07F 007/02; C07D 213/69 |
Field of Search: | 546/296,14 |
4743685 | May., 1988 | Breuer et al. | 540/363. |
4889930 | Dec., 1989 | Godfrey et al. | 540/363. |